2In-memory OLTP is limited to one quarter of the edition buffer pool memory limit.

3In-memory columnstore and Real Time Operational Analytics are limited to one quarter of the edition buffer pool memory limit; the features are also limited to two degrees of parallelism (two cores/query) in SQL Server Standard edition and one degree of parallelism (one core/query) in SQL Server Express edition.

4Scaling out queries using PolyBase requires using SQL Server SP1 Enterprise edition as a head node.